|No.|Race Title|Track|Date|TV|
|---|---|---|---|---|
|1|NextEra Energy Resources 250|Daytona International Speedway, Daytona Beach|February 21|FS1|
|2|Kroger 250|Martinsville Speedway, Martinsville|March 30†|FS1|
|3|SFP 250|Kansas Speedway, Kansas City|May 9|FS1|
|4|North Carolina Education Lottery 200|Charlotte Motor Speedway, Concord|May 16|FS1|
|5|Lucas Oil 200|Dover International Speedway, Dover|May 30|FS1|
|6|WinStar World Casino 400K|Texas Motor Speedway, Fort Worth|June 6|FS1|
|7|Gateway 200|Gateway Motorsports Park, Madison, Illinois|June 14|FS1|
|8|UNOH 225|Kentucky Speedway, Sparta|June 26|FS1|
|9|American Ethanol 200|Iowa Speedway, Newton|July 12|FS1|
|10|Mudsummer Classic|Eldora Speedway, New Weston|July 23|FS1|
|11|Pocono Mountains 150|Pocono Raceway, Long Pond|August 2|FS1|
|12|Michigan National Guard 200|Michigan International Speedway, Brooklyn|August 16|FS1|
|13|UNOH 200|Bristol Motor Speedway, Bristol|August 20|FS1|
|14|Chevy Silverado 250|Canadian Tire Motorsport Park, Bowmanville, Ontario|August 31|FS1|
|15|EnjoyIllinois.com 225|Chicagoland Speedway, Joliet|September 12|FS1|
|16|UNOH 175|New Hampshire Motor Speedway, Loudon|September 20|FS1|
|17|Smith's 350|Las Vegas Motor Speedway, Las Vegas|September 27|FS1|
|18|Fred's 250|Talladega Superspeedway, Talladega|October 18|FOX|
|19|Kroger 200|Martinsville Speedway, Martinsville|October 25|FS1|
|20|WinStar World Casino 350K|Texas Motor Speedway, Fort Worth|October 31|FS1|
|21|Lucas Oil 150|Phoenix International Raceway, Avondale|November 7|FS1|
|22|Ford EcoBoost 200|Homestead-Miami Speedway, Homestead|November 14|FS1|

Question: what are the number of times a race was held in august?
Answer: 4